Fun Fact

Agatha Christie is the top-selling English-language author of all time. She wrote 78 mystery novels that have sold an estimated two billion copies.

Testimonial

"The staff at PSG had been nothing short of completely responsive and quick reacting to all of our requests. Within a few hours, we know that we will have answers to all of our questions, and their files have been on time and within the guidelines we established up front. Their staff members are personable and not afraid to take the time to find the right answers instead of immediately telling us our requests are impossible. We will use PSG's services as often as we can." Editorial Director, K-12 Publisher